BACKGROUND OF THE INVENTION
Field of the Invention
[0001] This invention relates to construction for holding a continuous plastics film partitioned
into sections, each of which is formed into a bag or a sheet used as a trash bag or
a sheet for wrapping, and particularly to such a construction, from which each section
of the plastics film can be taken out in a predetermined bag or sheet shape. Description
of the Prior Art
[0002] Heretofore, there have been proposed various containers in which a multiplicity of
bags made of plastics such as polyethylene are to be drawn out therefrom one after
another when necessary. Nevertheless, such a bag made of plastics has a frictional
resistance by far smaller than a piece of tissue paper, so that drawing out of one
bag cannot bring the succeeding bag to a take-out opening by use of the Z-shaped fold-in
type pop-up take-out method commonly used in the case of tissue paper, so that the
latter method is not practicable for use with plastics bags. In view of the above,
there has been proposed a construction, in which continuous plastics bags formed thereon
with perforated lines are folded and superposed on one another, these folded bags
are received in a container box, and, when a bag is to be drawn out, the aforesaid
perforated line is brought into contact with an edge (corner) of the container box
to thereby tear the bag off (Japanese Utility Model "Kokai"(Laid-Open) No. 52431/79).
The above arrangement, however, is disadvantageous in that, when the bag is to be
drawn out, the container box must be firmly held, and no such readiness in handling
can be offered as with the pop-up take-out method applied to tissue paper.
[0003] Further, there has been proposed such a construction that, plastics bags which have
been separated from one another are superposed in a container, with each bag being
partially overlapped onto the succeeding one, to thereby generate a force resisting
drawing out of the bag in the direction of the draw-out. With the above arrangement,
however, the bags could not always be drawn out one after another, but on the contrary,
several bags tend to be drawn out together, whereby useless bags are accumulated to
a large number, thus proving to be uneconomical.
[0004] To solve the above problems, the present applicant has proposed a construction for
containing the plastics film in Japanese Patent-Kokai'(Laid-Open) No. 96948/82, in
which a continuous plastics film is folded such that a linear cut or cuts provided
at the respective folded sections are accurately superposed on one another. The plastics
film is contained in a plastics film container such that insert members projectingly
provided in the container are inserted through the linear cuts thus superposed, one
end of the first section of film is drawn out to a predetermined length and then the
film is cut away along the linear cut or cuts by means of the aforesaid insert members.
When the film is cut away, one end of the succeeding, i.e. second, section of the
film is automatically drawn out to a take-out opening through the action of connected
portions other than the linear cut portions, thereby enabling the achievement of the
readiness of the pop-up take-out method as applied to tissue paper and the reliable
take-out of the bag-shaped or sheet-shaped film sections one after another.
[0005] However, in the thus proposed construction for containing the plastics film, the
insert members to be inserted through the linear cuts of the film are directly affixed
to the container, whereby it is difficult to manufacture-the container and to automate
the process of installing the plastics film, thus presenting the disadvantage that
it is difficult to manufacture the container inexpensively.
[0006] Then, to improve the workability of the process of installing the film, the present
applicant has proposed a construction for containing the plastics film in Japanese
Patent Kokai(Laid-Open) No. 142872/82, in which an insert members to be inserted through
the linear cuts in the plastics film are provided on a plate member provided separately
of the container, whereby the work of mounting the insert members onto the plate member
is facilitated and the work of fastening of the plastics film and installing the film
in the container are automated. In addition, the inventions including these containing
constructions as in the aforesaid Patent Kokai (Laid-Oepn) Nos. 96948/82 and 142872/82
have been filed in EPC as EPC Application No. 81109030.7.
[0007] By the thus proposed constructions for containing the plastics film, the workability
of the process of installing the film has been improved to a considerable extent.
In consequence, it has become possible to manufacture the container less expensively
than before.
SUMMARY OF THE INVENTION
[0008] The present invention has as its object the provision of a construction for holding
the plastics film, wherein, even in comparison with the thus proposed constructions
for containing the plastics film, the construction for holding the plastics film can
be further inexpensively manufactured and sections of the thus held plastics film
can be reliably and easily taken out one section after another.
[0009] To achieve the above object, the present invention contemplates that a bag-shaped
or sheet-shaped continuous plastics film is formed with at least one linear cut in
a crosswise direction at a predetermined interval along each of line perpendicular
to the longitudinal direction of the plastics film, this plastics film is folded in
a Z-shaped manner with the linear cuts superposed on one another, insert members are
inserted or at least partially inserted through the thus superposed linear cuts, the
folded plastics film is bundled by means of this insert members, and the separation
of sections of the plastics film from one section after another and the holding of
the folded state of the plastics film are made possible.
BRIEF DESCRIPTION OF THE DRAWINGS
[0010]
Fig. 1 is a partially cut-away perspective view showing a first embodiment of the
holding construction for holding the plastics film according to the present invention;
Fig. 2 is a perspective view of the essential portions showing one embodiment of the
plastics film used in the embodiment shown in Fig. l;
Fig. 3 is a perspective view showing the folded state of the plastics film shown in
Fig. 2;
Fig. 4 is a perspective-view of the essential portions showing an embodiment of a
stock device used in manufacturing the embodiment shown in Fig. 1;
Fig. 5 is a perspective view showing the plastics film shown in Fig. 2, folded into
the stock device shown in Fig. 4;
Fig. 6 is a perspective view showing the state where a plate member is secured to
the plastics film shown in Fig. 2, folded by the stock device shown in Fig. 4;
Figs. 7 and 8 are perspective views of the essential portions showing other embodiments
of the plastics film differing from each other according to the present invention;
Figs. 9 through 11 are perspective views, partially cut away, showing a second through
a fourth embodiments;
Fig. 12 is a perspective view showing the state where the plastics film shown in Fig.
2 is folded by an embodiment of the stock device other than the above;
Figs. 13 and 14 are perspective views, partially cut away, showing a fifth and a sixth
embodiments, respectively; and
Figs. 15 through 19 are perspective views showing a seventh through an eleventh embodiments,
respectively.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0011] Fig. 1 shows the first embodiment of the construction for holding the plastics film
according to the present invention, in which a container.1 is made of paper board
or the like and formed into a hollow rectangular parallelepiped, and an elliptical
take-out opening 2 is formed in the center of the upper surface of this container
1. This take-out opening 2 is formed such that the center of the upper surface of
the container 1 is opened by perforated lines provided along the aforesaid elliptical
shape.
[0012] Contained in the container 1 is a plastics film folded in a Z-shaped manner. This
plastics film 4, as shown in Fig. 2 for example, is of such an arrangement that a
continuous tubular film formed by the tubular film process or the like is folded along
lines perpendicular to the longitudinal direction of the plastics film to be formed
into double wall portion. Linear cuts 5 penetrating through the double wall portion
of the film 4 are formed in two lines at regular intervals in a crosswise direction
at the intermediate portion of the folded portion of the continuous plastics film
in the longitudinal direction of the film. Perforated lines 6 are formed along the
lines of linear cuts over the entire length in the crosswise direction except at the
linear cuts 5. The film 4 is connected in the longitudinal direction thereof at three
portions in the crosswise direction, including at the central portion, by these portions
of perforated lines 6. Furthermore, a heat seal portion 7 is formed by fusion bonding
between the double walls adjacent and along the respective linear cuts 5 and perforated
lines 6, and this heat seal portion 7 is formed over the entire length of the crosswise
direction of the film 4 in parallel with the perforated lines 6, i.e., in a direction
perpendicular to the longitudinal direction of the film 4.
[0013] The above-described film 4, as shown in Fig. 3 is (folded in a Z-shaped manner) such
that the respective linear cuts 5 are superposed on one another at the center. The
thus folded, predetermined length, sections of the film 4 are, as shown in Fig. 1,
contained in the container 1 in the state of being bent into C-shapes downwardly open
in looking from the longitudinal side edges of the film 4.
[0014] Insert members 3 are inserted through the linear cuts 5 thus superposed of the plastics
film 4 contained in the container 1, and the film 4 is bundled by the insert members
3 in a folded state.
[0015] The insert members 3 are each formed of a wire-reinforced plastics tape as being
a flexible cord-shaped member of a predetermined length, upon being inserted through
the linear cuts 5 thus superposed, bent at opposite ends thereof in the directions
of opposite end edges, i.e., to the right and left in Fig. 1, and thereafter, engaged
with each other, being twisted together.
[0016] A plate member 10 slightly smaller than the inside dimensions of the container 1
and capable of being readily put into and taken out of the container 1 is disposed
inside a surface of the container 1 where the take-out opening is formed. This plate
member 10 is made of a material such as paper or plastics, but is not restricted in
material quality in particular.
[0017] Formed at the central portion of the plate member 10 is a take-out opening 12 of
an elliptical shape corresponding to the take-out opening 2 of the container 1. At
longitudinally opposite ends of this take-out opening 12 as seen in Fig. 1, relief
grooves 13 opening at one side of the plate member 10 are formed corresponding to
the inserted portions of the insert members 3 of the plastics film 4. The plate member
10 is bundled together with the plastics film 4 by means of the insert members 3 inserted
through the relief grooves 13 and twisted at the opposite end portions together.
[0018] Description will hereunder be given of the manufacturing process of the present embodiment.
[0019] Fig. 4 shows the essential portions of the stock device used in the manufacture of
the present embodiment. In this drawing, the top end face of a bearer 20 is formed
into a flat plate shape. The bearer 20 is vertically displaceable. Pins 21 are upwardly
projectingly provided at predetermined positions on the top end face of the bearer
20. The pins 21 are not vertically displaceable.
[0020] Each of the pins 21 is formed in the longitudinal direction thereof with an elongate
groove 22 opening toward the outer periphery of the bearer 20. These elongate grooves
22 are adapted to receive therein the insert members 3.
[0021] The plastics film 4 is folded by a folding machine or the like, not shown, so that
the film 4 can be folded by a predetermined width on the bearer 20 with the linear
cuts 5 being accurately superposed with one another. In this case, the pins 21 are
inserted through the linear cuts 5, and the bearer 20 gradually descends as the folding
progresses.
[0022] When the plastics film 4 of a predetermined quantity is folded on the bearer 20 as
shown in Fig. 5, the insert members 3 are inserted through the elongate grooves 22
(or may be previously inserted therethrough), subsequently, the opposite end portions
of the insert members 3 are bent toward the outer periphery of the bearer 20, twisted
together and engaged with each other, then the plastics film 4 is bundled by the insert
members 3, and thereafter, the plastics film 4 is removed from the bearer 20, thus
enabling the completion of the construction for holding the plastics film.
[0023] If the plate member 10 is secured to the plastics film 4 in such a manner that the
insert members 3 are inserted through the relief grooves 13 as shown in Fig. 6 after
the plastics film 4 has been removed from the bearer 20 as described above, the plate
member 10 and the plastics film 4 are bundled together by means of the insert members
3. The thus bundled article is installed in the container 1.
[0024] To take out a section of a predetermined length of the plastics film 4 to form a
bag in the present embodiment, firstly, a forward end of the film 4 should be picked
out of the take-out opening 2, and then, drawn out. When the film 4 folded and contained
in the container 1 is drawn out by a length of bag, - an end of the film 4, constituting
a second bag subsequent to the first one, engages the insert members 3 because the
insert members 3 are inserted through the linear cuts 5, with the result that the
opposite end portions and the central portions of the film 4 other than the linear
cuts 5, where the perforated lines 6 are formed, are torn off by a resisting force
due to the above-described engagement. When torn off, the film 4 is drawn out of the
take-out opening 2 formed in the center of the container 1. Hence, when the film 4
is drawn out by a length of bag, part of the central portion of the succeeding portion
of the film 4, connected to the first portion through the perforated lines 6, is drawn
out of the take-out opening 2 because the linear cuts 5 of the film 4 have widths
to some extent and no resisting force is generated in the draw-out direction until
the insert members 3 inserted through the linear cuts 5 reach the opposite end portions
of the film 4 where connections are effected through the perforated lines 6. If the
draw-out operation is continued in this condition, the opposite end portions of the
film 4 connected to the succeeding section of the film 4 through the perforated lines
6 engage the insert members 3 as if the opposite end portions of the film 4 are wound
around the insert member 3. At this time, tensile forces act on the opposite end portions
of the film 4, whereby, firstly, the perforated lines 6 at the opposite end portions
are cut. Thereafter, if the draw-out operation is further continued, a tensile force
acts on the central portion of the film 4 due to a resisting force resulting from
the engagement of the opposite end portions of the film 4 with the insert members
3, whereby the perforated line 6 at the central portion is cut. In consequence, part
of the succeeding section of the film 4 should project out of the take-out opening
2 without fail.
[0025] With this embodiment as described above, the plastics film 4 can be reliably taken
out in the same manner as in the pop-up take-out method of tissue paper, one section
after another.
[0026] Moreover, the manufacturing process is very simple, so that the manufacturing efficiency
can be improved to a considerable extent. Further, the insert members 3 are previously
inserted through the film 4 continuously folded on the bearer 20, whereby a predetermined
number of sections of the film 4 can be bundled by means of the insert members 3,
so that the manufacturing process as a whole can be automated by the provision of
a device of cutting the film by a predetermined number of sections and a device of
twisting the insert members 3 together, thereby enabling the production at a reduced
cost.
[0027] Furthermore, the outer dimensions of the plate member 10 is made slightly smaller
than the inner dimensions of the container 1, so that, when the plate member 10 with
the plastics film 4 engaged therewith is inserted into the container 1, the workability
is high. Further, the dimensions of the plate member 10 and the container 1 are slightly
different in dimensions from each other, whereby there is no possibility of a shift
of the take-out opening 12 of the plate member 10 from the take-out opening 2 of the
container 1 after the plate member 10 has been installed into the container 1. Moreover,
the plate member 10 can be secured to the plastics film 4, which has been bundled
by means of the insert members 3, whereby no particular reduction in the manufacturing
efficiency is caused due to the provision of the plate member 10. Further, this plate
member 10 may be replaced by one inserted into.the plastics film 4 by every predetermined
number of sections of the film 4 folded on the bearer 20, and thereafter, the predetermined
number of sections of the plastics film 4 and the plate member 10 are bundled together
by means of the insert members 3.
[0028] In working the invention, the plastics film 4 in the above-described embodiment may
be replaced by a plastics film 14, a longitudinal side edge of which is opened as
shown in Fig. 7 or a plastics film 24 formed of a single sheet as shown in Fig. 8..
The plastics film 14 shown in Fig. 7 is provided with two linear cuts 15 disposed
at regular intervals in the longitudinal direction thereof, perforated lines 16 are
provided at a position incorporating the linear cuts 15, and heat seal portions 17
are provided at both sides of the perforated lines 16. Further, the plastics film
24 shown in Fig. 8 is provided with two linear cuts 25 disposed at regular intervals
in the longitudinal direction thereof, and perforated lines 26 are provided at a position
incorporating the linear cuts 25. The same operation as those described above can
be performed by use of these films 14 and 24. The perforated lines 6, 16 or 26 need
not necessarily be provided, but, the provision of those perforated lines can offer
advantages that facilitate the tear-off operation. Further, the number of linear cuts
5, 15 or 25 need not be two, but, may be reduced to one disposed at the center of
the film 4, 14 or 24 in the widthwise direction or shifted from the center in the
widthwise direction toward either one of side edges of the film. In this case, if
the linear cuts 5, 15 or 25 is disposed in the center in the widthwise direction,
then opposite end portions of the succeeding film 4, 14 or 24 is drawn out, and, if
the linear cut 5, 15 or 25 is shifted from the center in the widthwise direction,
then one end portion farther separated from the linear cut 5, 15 or 25 of the succeeding
film 4, 14 or 24 is drawn out when the film 4, 14 or 24 is drawn out. When two linear
cuts 5, 15 or 25 are present, if one of those linear cuts is disposed at an intermediate
portion in the crosswise direction of the film 4, 14 or 24, then the other may be
located to start from the side edge of the film 4, 14 or 24 with one portion thereof
being cut open. However, when two linear cuts 5, 15 or 25 are provided at an intermediate
portion in the crosswise direction of the film 4, 14 or 24 and the insert members
3 are inserted at opposite sides of the take-out opening, then there are presented
advantages such that a resisting force present when the film 4, 14 or 24 is drawn
through the connecting portions at opposite sides causes the succeeding section of
the film 4, 14 or 24 to be reliably drawn out.
[0029] In the above-described emboidment, the plate member 10 has relief grooves 13 opening
at one side of the plate member 10, but, this specific form may be replaced by a plate
member i10 in the second embodiment shown in Fig. 9, which has cylindrical insertion
holes 113.
[0030] Furthermore, the plate member need not necessarily be one which is provided at the
side of the take-out opening 2 of the container 1, but, may be one which is provided
at a position opposite to the take-out opening 2 of the container 1, i.e. on the side
of the bottom of the container 1 like a plate member 210 of the third embodiment shown
in Fig. 10. Further, the plate member need not necessarily be one which is bundled
together with the film by means of the insert members, but, may be one in which the
plate members 310 are secured to the film 4 by means of substantially an inverted
U-shaped retainers 311 formed separately of the insert members 3 as in the fourth
embodiment shown in Fig. 11. In this case, a stage of work of bundling the film 4
by means of the insert members 3 can be separated from a stage of work of securing
the plate members 310 to the film 4, and the plate members 310 are ones easily secured
to the film 4, thus enabling to improve the manufacturing efficiency. In addition,
the plate members 10, 110, 210 and 310 may not be provided at all.
[0031] Further, in the above-described embodiment, the insert members 3 are formed of flexible
cord-shaped members such as wire-reinforced plastics tapes, however, need not necessarily
be plastic or have so-called nerve, but, may be flexible cord-shaped members having
no nerve at all such as a simple vinyl cords, cotton strings or the like. In this
case, as shown in Fig. 12, if pins 120 are formed into tubular forms and insert members
103 formed of cotton strings or the like are inserted through hollow portions 121
of the pins 120, then insert members 103 can be easily inserted through the linear
cuts 5. In addition, reference numeral 122 in Fig. 12 designates a spool as being
a supply source of the insert members 103.
[0032] Furthermore, the insert members need not necessarily be formed of flexible cord-shaped
members, but, may be rod-like members made of plastics or the like and formed into
substantially spool-like forms provided at opposite ends thereof with comparatively
large flanges like insert__members 203 of the fifth embodiment shown in Fig. 13, or
may be clips made of plastics, having rigidity and formed into substantially C-shapes
like insert members 303 of the sixth embodiment shown in Fig. 14. In the latter case,
fingers 303A formed at the side of an opening of the insert member 303 should be inserted
through the linear cuts 5 of the film 4.
[0033] Further, the installed state of the plastics film 4 folded in the container 1 need
not necessarily be the downwardly bent C-shape, but, may be an upwardly bent C-shape
or any other shape, or may not be bent at all.
[0034] Furthermore, the container need not necessarily be the hollow parallelepiped, i.e.
box shape, but, may be replaced by a plastics bag made of polyethylene or the like,
which is very inexpensive as compared with the box-shaped one. More specifically,
a container 101 as in the seventh through ninth embodiments shown in Figs. 15 through
17, respectively, is formed of a transparent or opaque polyethylene bag and provided
at one side edge thereof with a mount 102. Of these, the eighth embodiment shown in
Fig. 16 is of such an arrangement that insert members 203 are secured to a container
101 from the outside. While, in the ninth embodiment shown in Fig. 17, the folded
film 4 is further doubly folded, and the thus doubly folded film 4 is arranged to
clamp a plate member 410, and substantially T-shaped insert members 403 provided at
one side edge of the plate member 410 are inserted through the linear cuts 5 of the
film 4. In addition, a reinforcing plate 112 may be provided around the take-out opening
2 of the container 101 as in the eighth embodiment. The mount 112 need not necessarily
be provided in the seventh through ninth embodiments.
[0035] Further, the box-shaped or bag-shaped containers need not necessarily be provided.
In short, it suffices to retain the folded plastics film. In consequence, the film
4 may be mounted on a plate member 500 functioning as a mount as in the tenth and
eleventh embodiments shown in Figs. 18 and 19. Of these, the tenth embodiment shown
in Fig. 18 is of such an arrangement that the film 4 is secured to and retained on
the plate member 500 by means of the insert members 203. While, in the eleventh embodiment
shown in Fig. 19, the film 4 is secured to and retained on the plate member 500 by
means of retainers 501 of substantially U-shape in cross section, which are formed
separately of the insert members 3.
[0036] The present invention with the above-described arrangement can provide the holding
construction which can be manufactured at a reduced cost, and in which the installed
film can be reliably and easily taken out one section after another.
1. Construction for holding plastics film, comprising:
the bag-shaped or sheet-shaped continuous plastics film, wherein at least one linear
cut is formed at regular intervals in a crosswise direction at the intermediate portion
of said film in the longitudinal direction of said film and which is folded in a Z-shaped
manner such that the respective linear cuts are accurately superposed on one another;
and
an insert member or members inserted through said superposed linear cut or cuts for
bundling said folded plastics film.
2. Construction for holding plastics film as set forth in Claim 1, wherein a plate
member or members are bundled together with said folded plastics film by means of
said insert member or members.
3. Construction for holding plastics film as set forth in Claim 2, wherein each of
said insert members is formed of a rod member affixed at one end thereof to said plate
member and formed at the other end with a flange.
4. Construction for holding plastics film as set forth in Claim 3, wherein a retainer
or retainers formed separately of said insert member or members, for retaining said
plastics film are provided on said plate member.
5. Construction for holding plastics film as set forth in Claim 3, wherein said plastics
film is contained together with said plate member or members in a container having
an take-out opening.
6. Construction for holding plastics film as set forth in Claim 5, wherein said container
is formed into a box shape.
7. Construction for holding plastics film as set forth in Claim 5, wherein said container
is formed of a plastics bag.
8. Construction for holding plastics film as set forth in Claim 7, wherein a reinforcing
plate is provided around the take-out opening of said container.
9. Construction for holding plastics film comprising:
the bag-shaped or sheet-shaped continuous plastics film wherein at least one linear
cut is formed at regular intervals in a crosswise direction at the intermediate portion
of said film in the longitudinal direction of said film and which is folded in a Z-shaped
manner such that the respective linear cuts are accurately superposed on one another;
and
an insert member or members inserted through said superposed linear cut or cuts for
bundling said folded plastics film, said insert member or members are formed of a
flexible cord-shaped member of a predetermined length, and opposite end portions thereof
are engaged with each other at opposite end edges of said plastics film in a state
where said insert member or members are inserted through said superposed linear cut
or cuts.
10. Construction for holding plastics film as set forth in Claim 9, wherein said flexible
cord-shaped member is a wire-reinforced plastics tape and opposite end portions thereof
are twisted together and engaged with each other.
11. Construction for holding plastics film as set.forth in Claim 10, wherein said
plate member or members are bundled together with said folded plastics film by means
of said insert member or members.
12. Construction for holding plastics film as set forth in Claim 11, wherein retainer
or retainers formed separately of said insert member of members, for retaining said
plastics film are provided on said plate member or members.
13. Construction for holding plastics film as set forth in Claim 11, wherein said
plate member is formed with a relief groove opening at one side of said plate member
corresponding to portions of said plastics film, through which said insert member
of members are inserted.
14. Construction for holding plastics film as set forth in Claim 13, wherein said
plastics film is contained together with said plate member or members in a container
having a take-out opening.
15. Construction for holding plastics film as set forth in Claim 14, wherein said
container is formed into a box shape.
16. Construction for holding plastics film as set forth in Claim 9, wherein said plastics
film is contained in a container having a take-out opening.
17. Construction for holding plastics film as set forth in Claim 16, wherein said
container is formed into a box shape.
18. Construction for holding plastics film as set forth in Claim 10, wherein said
plastics film is contained in a container having a take-out opening.
19. Construction for holding plastics film as set forth in Claim 18, wherein said
container is formed into a box shape.
20. Construction for holding plastics film, comprising:
the bag-shaped or sheet-shaped continuous plastics film, wherein at least one linear
cut is formed at regular intervals in a crosswise direction at the intermediate portion
of said film in the longitudinal direction of said film and which is folded in a Z-shaped
manner such that the respective linear cuts are accurately superposed on one another;
and
at least portion of a insert member or members inserted into said superposed linear
cut or cuts for bundling the folded plastics film.
21. Construction for holding plastics film as set forth in Claim 20, wherein each
of said insert members is formed into substantially a C-shape and the side of an opening
end thereof is inserted into said linear cut or cuts.
22. Construction for holding plastics film as set forth in Claim 21, wherein said
plastics film is contained in a container having take-out opening.
23. Construction for holding plastics film as set forth in Claim 21, wherein said
plate member or members are bundled together with said folded plastics film by means
of said insert member or members.
24. Construction for holding plastics film as set forth in Claim 23, wherein said
plastics film is contained together with said plate member or members in a container
having a take-out opening.